Screen Flashes Non Stop

I have a HP Pavilion 15-n210dx TouchSmart Notebook PC , and when I turn it on - the display flashes non stop .. seems like Explorer.exe process keeps reloading itself (the taskbar / and time disappear for a second then come back) ... this happens every 3-5 seconds.

What can I do to fix?
Started happening on Wednesday (11/5/2014) night
..
,,,

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I'm assuming this is when windows has reached the desktop? Whilst the machine is booting up after POST can you press f8 and then go into safe mode and reverse any changes you have recently made to your machine, failing that try a startup repair.

One of the major problems you run into with Windows 8 is trying to get to safe mode. There is a great way to get this accomplished that does not require going through the standard means.

Bring up taskmgr and run cmd.exe in administrator mode.

Type in the command bcdedit and hit enter.

There will be a list of bootable OS'es and other environments. Find your Windows 8.1. Hopefully the Identifier will be {current}. If it is not, it will be a long number such as {c0dfc4fa-cb21-11dc-81bf-005056c00008}. We will need to know this for the next command.

To make the current operating system be forced into safe mode, type the following

bcdedit /set {current} safeboot minimal

Again, if {current} was not the Identifier, type in the long number exactly. If it works, it will come back saying the command was completed successfully.

Then, type shutdown -r -t 0. This will make the system reboot and it should go into safe mode. From there you should be able to diagnose.

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